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Finding the Fourth Proportional to 76,903.75, 106,127.18 and 43,369.75

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Solution

The fourth proportional to 76,903.75, 106,127.18 and 43,369.75 is: 59,850.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,903.75 : 106,127.18 = 43,369.75 : x
  2. Step 2: Convert to fraction form
    76,903.75/106,127.18 = 43,369.75/x
  3. Step 3: Cross multiply
    76,903.75x = 106,127.18 × 43,369.75
  4. Step 4: Simplify right side
    76,903.75x = 4,602,709,264.81
  5. Step 5: Solve for x
    x = 4,602,709,264.81/76,903.75
  6. Step 6: Final answer
    x = 59,850.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.